needing advice

so me and my husband are trying for baby number two we have done plenty of baby dancing clearly😂 I spotted from the 17th from the 19-20th never a normal period it was off and on and tmi a bit stringy... after this spotting I never stopped cramping I've been experiencing tingling in my breast and naseua frequently my question is I've gotten faint positives at home but the doctors office shows negative my doctor thinks its to soon so when should I test again